Carriage-release mechanism for typewriting machines



,E. B. HESS AND L. C. MYERS.

CARRIAGE RELEASE MECHANISM FOR TYPEWRHING MACHINES.

' APPLICATION FILED MAY27. 1921.

1,41 5,032. a ted May 9, 1922.

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EDWARD BEENABD HESS AND LEWIS CARY MYERS, 0F BROOKLYN, NEW YORK, ASSIGNQRS T0 ROYAL TYPEWRITER COIVIPANY, INC, 015 NEW YORK, N. Y.

' CARRIAGE-RELEASE MECHANISM FOR TYPE'WRITING MACHINES.

Specification of Letters Patent.

application filed May 27, 1921. Serial No. 473,166.

To all whom it may concern:

A Be it known that we, EDWARD BERNARD Hess and LEWIS CARY MYnRs, both citizens of the United States, residing in Brooklyn, county of. Kings, city and State of New York, have invented certain new and useful Improvements in Carriage-Release Mechanism for Typewriting Machines, of which the following is a specification.

In our application for patent filed January 13, 1921, N 0. 436,924, we have shown all of the mechanism of a typewriting machine embodying variou improvements made by us to provide a small, compact and light machine which is portable, in which the parts can be easily assembled and which may be made and sold at a relatively low cost. The application for the present patent is a division of the said application filed Januv ary 13, 1921, and the claims herein are confined to certain improvements in the carriage release mechanism. 7

The object; of this invention is to provide what may be termed an integralcarriage rack bail, the rack bar, its supporting arms, its lifting levers and its stops being all assembled and connected in such manner that they may be readily placed in position in the machine and connected with the carriage in assembling the mechanism and may as readily be withdrawn from the carriage when desired.

In the accompanying drawings,

Figure 1 is a view partly in side elevation and partly in section of parts of a typewriting machine with our improvements applied;

Figure 2 is a perspective view of the ear riage rack bar (with parts broken away), its lifting levers, stops and supporting arms;

Figure 3 is a detail view in section, showing how the rack supporting arm on one end of the rack is carriage.

In Figure 1, A indicates part of thetypewriter frame, B one end of the carriage, C the platen, and 1) part of the escape mechanism. The rack bar is indicated in Fig. 1 at E, and a paper release lever at F.

As shown in Fig. 2, the rack bar has its opposite ends bent to form arms e, which are disposed at right angles to the toothedportion of the bar. These arms are perforated the pivot screw F pivotally connected with the at e to receive pivot screws, which connect them with the opposite side plates of the carriage. The arm 6 at the right-hand end of the bar is connected the manner indicated in Fig. 3, whereB indicates the side plate of the carriage, F a paper release lever, G afpivot screw and H a spacing sleeve. A reduced portion of the sleeve H is riveted to the plate B at b, and the sleeve is internally threaded to receive The inner end of the screw F is reduced and shouldered at c and enters the hole 6' in the adjacent rack supporting arm e. The screw is shouldered at f to receive the is held in place by the head of the pivot screw F, but is free to turn on the part 7 of the sleeve.

The arm 6 on the opposite end of the rack bar is pivoted to the adjacent end plate of the carriage in any suitable way.

Carriage release levers K and-L are connected with the rack bar and are employed for lifting the rack bar out of engagement with its operating pinion d. The lever L is formed integrally with an arm Z, which is riveted to one end of the rack bar and this arm is formed with a stop Z, which serves to limit the movement of the rack bar when it return to normal position to engage the pinion d. The lever K is likewise formed integrally with an arm 70 secured to the opposite end of the rack bar and this arm carries a stop is, similar to the stopl and serving a similar purpose. The arm Z: is formed with a lug 70 to which is attached a spring M (Fig. 1), which serves to return the rack bar to normal position in engagement with it pinion.

In this way we provide what may be termed an integral carriage rack bail, the rack bar, its supporting arms, its lifting levers and its stops being all assembled and connected in such manner that they may be readily placed in position in the machine and connected-with the carriage in assembling'the mechanism and may as readily be withdrawn from the carriage whenever desired.

We claim as our invention:

1. A rack bail for typewriting machines, comprising pivotally mounted side arms extending from the rack bar and a lever at.

Patented May 9, 1922. original application filed January 13, 1921, Serial No. 436,924. Divided and this with the carriage in' paper release lever F, which I each end of the bar formed integrally with a stop for limiting the movement of the bar and which is secured to theend thereof.

2. In a typewriting machine, the combination of a rack bar having arms pivotally connected with the machine frame and alit'ting lever for the rack formed integrally with a stop attached to the rack bar and formed also with a lug for supporting a spring which returns the rack to normal position.

3. The combination with a carriage frame of a paper release lever, a rack bar having arms pivotally connected with the carriage frame, a lifting lever for the rack bar formed integrally with a stop attached to the rack bar, and means for pivotally connecting the paper release lever and one arm of the rack bar to the carriage frame, comprising a remote shouldered spacing sleeve interposed hetween the paper release lever and the side of the carriage frame, a headed screw for holding the paper release lever on the shouldered sleeve and which has a portion projecting from the side plate of the carriage to which one arm of the rack bar is pivoted.

4c. lln a typewriting machine, a toothed rack bar formed integrally at each end with a supporting arm and a rack lifting lever formed integrally with an arm secured to one end of the rack bar and which is formed integrally with a bent portion forming a stop to limit the downward movement of the rack bar.

In testimony whereof, we have hereunto subscribedour names.

EDWARD BERNARD HESS. LEWIS CARY MYERS. 

